Crystal structure and physical properties of CePd4Sn: A new magnetically ordered Kondo lattice
| Autor: | Anna Tursina, Yu. D. Seropegin, J. L. Snyman, André M. Strydom, Sergey Nesterenko |
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| Rok vydání: | 2013 |
| Předmět: |
Condensed matter physics
Chemistry Mechanical Engineering Metals and Alloys Intermetallic Crystal structure Magnetic susceptibility Crystallography Chemical bond Mechanics of Materials Electrical resistivity and conductivity X-ray crystallography Materials Chemistry Antiferromagnetism Orthorhombic crystal system |
| Zdroj: | Journal of Alloys and Compounds. 577:677-682 |
| ISSN: | 0925-8388 |
| Popis: | We report on the synthesis, crystallographic analysis, and physical properties of the new intermetallic compound CePd4Sn. It crystallizes in the orthorhombic Cmce space group with cell dimensions a = 9.003(4) angstrom, b = 23.613(3) angstrom, c = 8.265(3) angstrom, Z = 16, Pearson code oS96 and adopts a site exchange variant of the Dy2Ni7Sn3 type. Chemical bonding is characterized by strong Pd-Pd and Pd-Sn interactions. The structure can be presented as a packing of condensed cerium polyhedra. The 4f-electron part of the electrical resistivity is in evidence of incoherent Kondo scattering near and below room temperature that originates from the Ce3+ local moment. The magnetic susceptibility demonstrates stable moment behavior down to similar to 100 K. Magnetic ordering, presumably of an antiferromagnetic nature, occurs below T-N = 0.9 K. (C) 2013 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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